package com.cjx.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

/**
 * @author cjx
 * @date 2021/6/10 0010 - 18:31
 */
@Service
public class PaymentService {
  public String paymentInfo_ok(Integer id){
      return "线程池："+Thread.currentThread().getName()+":"+id;
  }
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value="3000")//设置 最大时间
    })
    public String timeout(Integer id) throws InterruptedException {
      int timeNumber = 3;
      Thread.sleep(4000);
        return "线程池："+Thread.currentThread().getName()+":"+timeNumber;
    }

    public String paymentInfo_TimeOutHandler(Integer id){
         return  "线程池："+Thread.currentThread().getName()+"出错找我";
    }

    //=======服务熔断。
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
      if(id < 0) {
        throw new RuntimeException("******id 不能负数");
      }
      String serialNumber = IdUtil.simpleUUID();

      return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }
  public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id) {
    return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
  }


}
